Improvement in locomotives



waited (States @aient 69Min.

Letters Patent No. 107 ,47 2, :lated September 20, 1870.

IMPROVEMENT IN LOCOMOTIVES.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom 'it may concern Be it known that I, WILLIAM A.l`osrnn, ot' Fitchburg, in the count-y of Worcester and Commonwealth ot' Massachusetts, have invented certain new and useful Improvements in Locomotives; and I do hereby declare the following to be a full, clear, and exact description of the saine, referencebeing had to the accompanying drawing forming a part of lthis specification, in which .Figure 1 represents a side view of so much of a locomotive as is necessary to illustrate my invention, a. portion of the fire-box being broken away to show the interior.

Figure 2 represents a horizontal section on line A B, iig. 1. v

lo enable those skilled iu the art to which my invention belongs to make and use the same, I will proceed to describe it more in detail.

'Ihe nature of my invention consists in arranging below the grate a fire-screen, substantially as herev after described.

'Ihe part marked A represents the boiler ot' the locomotive; B, the fire-box; C, the ash-pit; I), thc grate-bars; and E E, the dampers, all ot' which may be constructed and arranged in relation to each other in the ordinary manner, and, therefore, need not he more fully described.

In the upper part of the ash-pit C, at a' short distance below the grate-bars D, Iarrange a screen, F, made. ot' fine wire-gauze, or perforated nietai, so that any re which may drop through the grate is caught and reta-ined upon the screen F, while the air is allowed to pass through, to supply the re, the draught being equaliz-ed and uniformly distributed to the tire` surface bythe employment ot the screen.

The screen F is arranged so that it carr be drawnj out'through an opening, a, in the side ofthe tire-box',

and any cinders or other matter collected thereon dumped into the ash-pit C.

It is well known that small ooalsoften drop through grates,'and roll outat the' dampers E, which latter are open when the locomotives are in use, and, also, that frequently extensive fires are in this way kindled Aalong the route, which burn over vast -tracts of land, destroying bridges, fences, buildings, and trees, th'ex-ey by endangering life, occasioning the loss of ylarge amounts of valuable. property, ai1(l.;creating much anxiety and suffering.

The-object of my present invention is to prevent the occurrence of such disasters.

lhe screen F catches andl retains all coals, fireor cinders of suieieut size to do damagewbich may fall from the grate, thereby preventing them from being dropped along the road, while, at the same time, 

